OMC electric shift to mechanical conversion

Shaneth2

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I have a 1976 OMC electric shift outdrive, can I swap it out with an OMC mechanical shift outdrive without too much hassle?
 

P.V.

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Re: OMC electric shift to mechanical conversion

I guess someone's opinion of a "hassle" is subjective! I'd say that it would be a hassle, BIG TIME!!! And BTW, why would you continue to invest your hard ernd money on an Old OMC stringer system anyhow?? Unless you just love pain, in which case, I can send you to a few websites where "pain" is strongly encouraged!!
 

Boomyal

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Re: OMC electric shift to mechanical conversion

No hassle, relatively easy.
 

KaGee

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Re: OMC electric shift to mechanical conversion

Boomer has done it.... ask him nice and he'll tell ya! ;)
 

P.V.

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Re: OMC electric shift to mechanical conversion

OK, it's do-able, but not cheap!! If you have an never ending source of OMC parts, OD and shift box, to name just the big items......it's do-able!! I stand corrected. And it's ez-ier for someone who's done it before. Are you ghunna pay someone to do it?? Just more money!
 

Boomyal

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Re: OMC electric shift to mechanical conversion

P.V., you're gonna scare the poor guy. It can practically be done in your sleep and if you can get a reasonable price on the unit, it's a good move.
 

Shaneth2

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Re: OMC electric shift to mechanical conversion

Yeah, I can get the whole out drive with the cable shift and everything. Upper, lower, everything. I'm told they are interchangeable. I have taken my electric shift apart and put it back together several times, I have a shop with everything I need but I don't know how the mechanical shift works, Ive never seen one in action. My main concern is how the shift cable is operated. Does the cable run all the way up to the throttle lever? I hear rumor that the electric shift is smoother? Better?
 

Boomyal

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Re: OMC electric shift to mechanical conversion

if your electic shift is working well, why do you want to change it?
 

Shaneth2

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Re: OMC electric shift to mechanical conversion

It doesnt work well, thats the problem, the last time I took the boat out it fell apart so to speak. The upper gears are mashed, the thing filled up with salt water, the shift magnets arent working etc. I just happen to have access to a complete mechanical shift outdrive so I thought I would look into swapping them out.
 

Boomyal

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Re: OMC electric shift to mechanical conversion

Originally posted by Shaneth2:<br /> It doesnt work well, thats the problem, the last time I took the boat out it fell apart so to speak. The upper gears are mashed, the thing filled up with salt water, the shift magnets arent working etc. I just happen to have access to a complete mechanical shift outdrive so I thought I would look into swapping them out.
Considering your description, it would be a good thing to do. The hydro-mech unit is more reliable.
 

Shaneth2

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Re: OMC electric shift to mechanical conversion

Once I swap out the outdrive, what additional hardware will I need to hook up the shifting mechanism?
 

John Smith

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Re: OMC electric shift to mechanical conversion

Boomer,KaGee or anyone: If you have a high prof OMC E.S. 1972 V8, Do I need a high prof Mech shift V8/V6 to make the same height? Cavitations<br />I am thinking to do it, I saw a few in the ebay 80-85 V6, just the out drive no Warranty, look like a low profile, It hard to trust what they sell, I still need shift cable and the throat unit and not sure what else I need?<br />Now I just find out someone came out with the Adapt tram plate to merc, but no photo and measurement, anyone know anything about this or had done similar please give some input! <br /><br />Your Respond is greatly appreciated, esp Boomer (prev and now)
 

Boomyal

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Re: OMC electric shift to mechanical conversion

Originally posted by Shaneth2:<br /> Once I swap out the outdrive, what additional hardware will I need to hook up the shifting mechanism?
You need a 'shift converter box'. Keep an eye on ebay. They come up frequently and they don't cost much This mounts on the inside of the transom, above the motor.<br /><br />You need a new shifter/throttle assy. with cable. The new cable connects to the 'shift converter. I can give you a number of a guy to call in AZ that might have it all.<br /><br />You also have to enlarge the hole thru the intermediate housing, where the shift cable comes thru. The OD shift cable is bigger diameter than the 'electric cable'. You'll just need to seal it up with some good sealant. The cable on your 'new unit' should have a sleeve on it where it runs thru the IM housing.<br /><br />budda bing, budda boom. You're off and running. You will probably need a manual to set up the shift converter.
 

Boomyal

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Re: OMC electric shift to mechanical conversion

Originally posted by John Smith:<br /> Boomer,KaGee or anyone: If you have a high prof OMC E.S. 1972 V8, Do I need a high prof Mech shift V8/V6 to make the same height? Cavitations
Not sure of the different profile mech shift units choices. I can give you a tel number to call and ask. I would definitely assume that you would need to match the dimensions. A shorter leg would not do.
 

whywhyzed

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Re: OMC electric shift to mechanical conversion

I converted mine. Boat is a 1971 and was a 120 HP electric - converted to 3.8 mechanical 1984 vintage power.<br />HUGE HASSLES! <br />I had to cut and rebuild the transom. The bellows sits in a totally different place on the newer style. The newer 22 screw bellows are also larger than the 14 screw electric style.<br />The orig. electric in my boat was, I suppose "high profile"? anyways, if I used the same transom hole, my prop would have been ventilating like mad. And I would have had to block the engine up 4" above the stringers...<br />When I sat the newer engine on the stringers , everything matched great but that was after the transom mods.<br />Might as well go to merc or volvo. I only bothered because everything was basically free.<br />free turned into $1500 pretty quick though.<br />Mine turned out great but it was a lot of work.
 

Boomyal

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Re: OMC electric shift to mechanical conversion

hystat, yer tryin to cause trouble here, not to mention make things complicated. :p <br /><br />You not only changed your outdrive, you changed your motor and thereby the generation of intermediate housing.<br /><br />Shane is just wanting to change the outdrive. He can keep his original intermediate housing and thereby the original boot. The only issue he needs to deal with is whether the 800 drive is the same length as his electric drive.
 

whywhyzed

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Re: OMC electric shift to mechanical conversion

oops :) <br /><br />so, if he has a short, low pro electric, he can do it?<br /><br />(I am pretty sure there was never a high profile mechanical shift)<br /><br />Also he would have to have trucourse steering on his old electric, no?<br />did the early intermediates have tru course and low profile?<br /><br />I'll go to bed now before I stir this thread into some complex thing it doesn't need to be... haha
 

Shaneth2

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Re: OMC electric shift to mechanical conversion

Hey thanks Boomyal, sounds like a plan, if you could give me that number I would apreciate it. Hopefully I can everything put together before the season gets underway, I spent much of last year fixing everything that can go wrong with the damn thing every time I took it out.
 

Boomyal

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Re: OMC electric shift to mechanical conversion

Shaneth, you sure you have the right drive for your motor? 400 stringer for the little guys and 800 for the V8s. Also did you compare the length of the outdrives.
 
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